Every vehicle at all times while being parked upon the public highways, streets, alleys, or parking lots of Provo City, shall:
(1) Be registered in the name of the owner thereof in accordance with the laws of Utah;
(2) Display in proper position two (2) valid, unexpired license (registration) plates, one (1) on the front and one (1) on the rear of such vehicle; and
(3) When required, current validation or indicia of registration attached to the rear plate and in a manner complying with the laws of the state of Utah, and free from defacement, mutilation, and obscuring matter so as to be plainly visible. However, if such vehicle is not required to be registered in Utah, and the indicia of registration issued by another state, territory, possession or district of the United States, or of a foreign country, complies with the laws of Utah and substantially complies with the provisions hereof, such registration shall be considered as compliance with this Section.